Throttle-valve.



G. W. RUDOLPH. THROTTLE VALVE. APPLICATION FILED MAR. 17, 1913.

1,092,748. v I Patented Apr. 7, 19M

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THROTTLE-VALVE.

Specification of Letters Patent. I

Patented Apr. 7, row.

Application filed March 17, 1913. Serial No. 754,900.

To all 107mm it may concern Be it known that I, GEORGE W. RUDOLPH,

a citizen of the United States, residing at Boonville, in the county of VVarrick and State of Indiana, have invented certain new and useful Improvements in Throttle- Valves, of which the following is a speclfication, reference being had to the accompanying drawings.

This invention relates to new and useful improvements in throttle valves particularly adapted for use in connection with hoisting engines and my object is to provide a device, the construction of which is a vast 1mprovement over the devices in present use.

A further object of the invention resides in providing means for the operation of the valves to both a rotary and a reciprocatory movenient and a still further object resides in providing a valve of improved design.

Still another object of the invention resides in providing a device which is simple and durable in construction. inexpensive to manufacture and one which will be very efiicient and useful in operation.

With these and other objects in view, the invention consists in the novel features of construction, combination and" arrangement of parts as will be hereinafter referred to and more particularly pointed out in the specification and claims. i In the accompanying drawing forming a part of this application, Figure 1 is a vertical section tl'irough the valve chambers and adjacent parts. Fig. 2 is a horizontal section therethrough as seen oh line 22, Fig. 1. Fig. 3 is a perspective view of the throttle valve removed.

In describing my invention, I shall refer to the drawing in which similar reference characters designate corresponding parts throughoutthe several views and in which 1 indicates a casing or the like which is designed hollow to form a valve chamber 2, the latter having communication, through the medium of the openings 3 and 4. therein, to engines (not shown). The lower por tion of the casing or valve chamber is secured, in the usual or any preferred manner to the elbow or the like 5 which leads to the main steam line or pipe (not shown). The lower portion of the casing 1 has an inwardly projecting flange 6 formed thereon which provides an annular opening 7, the latter being of the same diameter as the lower portion of the valve chamber 2 and said valve chamber tapers smaller toward its upper end as clearly shown [in Fig. 1'

of the drawings. Bolted or otherwise secured to the under face of the flange-like portion 6, is an annulus 8 which is annularly offset to provide a portion for projection through the opening 7 and the wall of the central opening of said annulus is designed to form a valve seat 9.

Formed on the upper face of the casing or valve chamber is an elongated arch 10 and disposed through an opening in the crown of this arch is a shaft 11, the latter also extending through an opening in the top of the valve chamber. This shaft 11 'has a valve 12 removably carried on the lower end thereof which is adapted to be mounted in the seat 9 and to this extent, the shaft 11 forms a valve stem. This valve 12 may be termed, however, an emergency valve, since the same entirely cuts off the flow of steam from the main. pipe to the chamber 2 when said valve is seated. Also keyed on the valve stem 11, above the valve 12 is a substantially cylindrical valve 13, the latter flaring outwardly somewhat toward its open end coincident to the inclination of the walls of the chamber 2 and said valve is provided with the four vertical openings 14 which extend completely therethrough to permit the steam entering the same to expand equally in all directions. This valve 13 is also provided at diametrically opposite points thereon with the transverse channel-ways 15 which lead from two of said openings to the wall of the chamber 2, and these channel-ways 15 are adapted to register with the openings 3 and 4 which lead to the engines. These channel-ways are somewhat oval-shaped in cross section to compensate for the movement of the valve vertically in the chamber. The opening at the top of the valve chamber 2 through which the valve stem 11 extends is provided with a stufling box 16 to prevent the escape of steam therethrough.

Loosely applied to the upper end of the valve stem 11 is an externally threaded sleeve 17 which is threaded into engagement with a threaded bearing 18 formed in the opening at the crown of the arch 10. The upper end of this sleeve 17 has a hand wheel 19 formed thereon and a collar 20 carried on the stem 11 is adapted to be engaged by the lower peripheral edge of said sleeve 17 as the hand wheel19 is turned in one direchand lever on the valve stem.

The casing 1 between the tubular portions which afiord communication to the engines, has a chamber 25 formed therein, the latter having communication with said tubular portions through the medium of the openings 26 in the side walls thereof. opening in the front wall of this chamber 25 is provided with a threaded opening with which is engaged a pipe or other conduit 27, the latter leading to an operating valve (not shown). This forms a release to relieve the valves of the steam pressure remaining thereon after the throttle is closed when reversing the valve gear to change from a forward to a rearward motion.

From the above description of the construction of my improved device, the operation thereof will be readily understood and it will be seen that the hand lever 22 which is disposed above the hand wheel may be readily operated to rotate the valve stem and the throttle valve carried thereon, and the many difficulties and inconveniences experienced by disposing the lever below the hand wheel will be obviated.

It will further be seen that by providing the vertical openings completely through.

the valve, thesteam will cause the same to expand equally in all directions and thus said valve may be more easily operated, under a very high pressure.

By the adjustment of the hand wheel, it will be seen that the steam from the main pipe may be entirely out off or allowed to flow to the valve chamber, as desired.

It will further be seen that I have provided a device which is simple and durable in construction, inexpensive to manufacture and one which will be very efiicient and useful in operation.

\Vhile I have particularly described the elements best adapted to perform the functions set forth, it is obvious that various changes in form, proportion and in the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the principles of the invention.

Having thus described this invention, what is claimed is 1. In a device of the class described, a casing designed to form a valve chamber having an inlet opening and an outlet opensigned to form a valve chamber bar secured to the upper end of said casing and receiving the upper portion of said stem through the crown thereof, means in connection with said stem for rotating the same and valves carried thereby, and additional means in connection with said stem and said arch bar for lowering the stem and.-

valves carried thereby.

2. In a device of the class descrlbed, a casing designed to form a valve chamber and provided with an inlet opening and outletopenings therein, the casing being, in turn, designed to form a valve seat at the inlet opening thereof, a substantially cylindrical valve arranged in the valve chamber and provided with a plurality of vertical spaced apart channels in communication with the inlet end of said chamber, said valve being also provided with transverse channels leading from the outer periphery thereof to certain of the vertical channels and adapted to be brought into communication with the outlet openings, a valve stem connected to said valve and extending above and below the same, an additional valve connected to the lower end of said stem adapted to be seated in the aforesaid seat of said chamber, and means in connection with the upper end of said stem for rotating and reciprocating said valves.

3. A device of the class described com prising an upwardly tapering casing deand provided with an inlet opening and outlet openings therein, a frusto-conical valve arranged in said chamber to fit snugly against the walls thereof, said valve being provided with a plurality of vertical channels in communication. with the inlet end of said chainher and also having transverse openings communicating with certain of the aforesaid vertical channels and adapted to be brought into communication with the outlet openings, a stem connected to said valve and projecting above and below the same, an additional valve engaged with the lower end of said stem and adapted to be seated in the aforesaid seat of the chamber, and means for rotating and reciprocating said stem and the valves carried thereon.

4. In a device of the class described. a casing designed to form a valve chamber having an inlet opening and an outlet opening therein, said chamber at the inlet opening being in turn designed to form a valve seat, a valve arranged in said chamber havinga vertical channel in communication with the inlet end of said chamber and a transverse channel communicating with said vertical channel and adapted to' be brought into communication with the outlet opening therein, a stem suitably engaged with said valve and projecting above and below the same, an additional valve carried on the lower end of said stem cooperating with the aforesaid seat in the chamber, an arch bar secured to theupper end of said casing and having a threaded bearing formed in'the crown thereof, the upper projecting portion of said stem extending through said bearing, a threaded sleeve mounted on said stem and engaged with the threaded bearing of the arch bar, said stem being provided with a shoulder to receive the lower end of said sleeve thereagainst, a

hand operating means in connection with said threaded sleeve whereby to actuate said stem and valves carried thereon, when turned in one direction, and additional means in connection with the extreme upper end ofsaid stem for further actuating said valves. 3

5. In a device of the class described, a casing designed to form a valve chamber havingan inlet opening and an outlet opening therein, said chamber, at the inlet opening being in turn designed to form a valve seat, a valve arranged in said chamber, said valve being provided with a vertical channel in communication with the inlet end of said chamber and a transverse channel communicating with said vertical channel and adapted to be brought into communication with the outlet opening, a stem engaged with said valve and projecting above and below the same, an additional valve carried on the lower end of said stem cooperating with the aforesaid seat in the chamber, an arch bar secured to the upper end of said casing, and

having a threaded bearing formed in the crown-thereof, the upper projecting portion of said stem extending through said bearing, a threaded sleeve loosely applied on said stem and engaged with the threaded bearing of said arch bar, said stem being also provided with a shoulder against which the lower portion of said sleeve contacts, a hand wheel formed on the upper portion of said sleeve, whereby when turned in one direction, said stem and valves will be lowered in the casing, means in connection with said sleeve and arch bar to lock the former in any adjusted position, and additional means in connection with the extreme upper end of said stem for rotating the latter and the valves carried thereon.

6. In a device of the class described, a casing designed to form a valve chamber having an inlet opening and an outlet opening therein, said chamber at the inlet opening being in turn designed to form a valve seat, a valve arranged in said chamber having a vertical channel in communication .with the inlet end of said chamber and a transverse channel communicating with said vertical channel and adapted to be brought into communication with the outlet opening therein, a stem engaged with said valve and projecting above and below the same, an additional valve carried on the lower end of said stem cotiperating with the aforesaid seat in the chamber, an arch bar secured to the upper portion of said casing and having a threaded bearing formed in the crown thereof, the upper projecting portion of said stem extending through said bearing in said arch bar, a threaded sleeve loosely applied on said stem and engaged with the aforesaid threaded bearing, said stem being also provided with a shoulder against which the lower portion of said sleeve rests, a hand wheel formed on the upper portion of said sleeve, whereby to lower said stem and valves carried thereon, when said wheel is turned in one direction, a lock nut engaged with said threaded sleeve and adapted for engagement with a portion of the archbar, to look said sleeve in any adjusted position, and a hand lever removably secured to the extreme upper end of said stem, whereby to rotate the latter and the valves carried thereby.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

, GEORGE W. RUDOLPH. Witnesses:

EUGENE FAY, MONTE M. KArrERJoHN. 

